WIDTH = 300
HEIGHT = 300

BACK_COLOR = (255, 255, 255)

def on_key_down(key):
    if key == keys.ESCAPE:
        quit()
        
def on_mouse_down(pos):
    print("mouse_down", pos)
    
def on_mouse_up(pos):
    print("mouse_up", pos)
    
def update():
    pass

def draw():
    screen.clear()
    screen.fill(BACK_COLOR)
